Improvement in windmills



J. C. SPARKS.

WMD-MILL.

No.176,558; Patented April 25, 187e.

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UNITED STATES PATENT EEIGE.

JASON C. SPARKS, OF TIPTON, IOl/VA.

IMPROVEMENT IN WINDMILLS.

Specification forming part of Letters Patent No. 176,558, (lated April25, lm; application filed March 6, 1876.

To all whom it may concern.-

Be it-known that I, JAsoN G. SPARKs, ot' Tipton, in the county of Cedarand State of Iowa, have invented a new and Improved Windmill, of whichthe following is a speciconstruction and arrangement of the Wheel andthe mechanism in connection withit calculated to simplify the same andincrease the efficiency.

Figure l is a sectional elevation of'uifny improved windmill. Fig. 2 isa top view, and Fig. 3 is a detail of the bearing t'or the main shaft.

Similar letters of reference indicatecorrespending parts. l 4

The vanes A of the wheel yare attached to the rings B C, supported bythe arms D, the

. arms ybeing arranged in dishing77 form, and

having the short arms E and the secondary vhub F combined with them inthe manner shcwn, by which `great strengtlris obtained with lightmaterial.- The shai'tG iscarried in the long bearing H,wl1ih is attachedt0 the upright bar I, which is pivoted, at L M, in the vertical supportcomposing two uprights, J,'having the turn-table K attached to themiddle, carrying the pivot b and cup d, and being itself pivoted at O ona plate, P, supported at the'middle of the tower, or thereabout. Besidesbeing attached directly to said bar I, the bearing is also connected toit by the strong brace Q. y

The support J and turn-table K turn about on the tower kfor the wheel toface the Wind, being operated by the tail-vane R, which is pushed aroundby the wind, and the wheel and its supporting-bar I turn on'the pivots LM, to regulate it to the variations of the Wind, being held to the windby the weight S on arms T, pivoted to the tail-ro-.l U, so that it israised by rod V and arm W when the wheel is forced around, and pushesthe Wheel back, by falling, when the power 1of the Wind diminishes.

A rod, X, is connected to one of the arms T, for raising the weight toregulate the wheel or stop it by hand, the said rod being connected by aswivel, Z a, allowing the-upper portion to revolve with thewheel-support.

The upright bar I has a cup, at L, for the pivot-pin b ot' the bars J,to hold the oil for lubrication, and its step M works in a cup, d, offrame J, for the same purpose. The step O of the frame J also works in acup, e, for retaining the lubricating material.

The tail-vane is connected to theturn-table frame by the horizontal rodf, and the inclined rod U connects it to the pivot b at the top, makinga light but substantial connection.

I propose to use Wood bearings g for the wheel-shaft, arranging them sothat the pressure is sustained on the grain endwise.

h is a stop-rod for limiting the wheel in its movements ou theturn-table.

Having thus described myV invention, I claim as new and desire to secureby Letters Patent- 1. The Wheel-shaft bearing H, upright supporting-barI, brace Q, pivots L M, and the turn-table K and uprights J, combinedand arranged substantially as specified.

2. The cup L on the upright I, in combination with the pivot'b offrameJ, substantially as specilied.

3. The weight S, rod V, arms T W, combined and arranged with tail-rod1I, and the wheel-shaft bearing H, substantially as specitied.

4. The swivel Z a,'c0mbined with rod X,

'weight S, and turn-table frame, substantially as specified.

JASON C. SPARKS.

Witnesses: v J AcoR WEAVER, A. W. SPARKS.

